Solve the problem.A power boat in still water maintains a speed of 40 miles per hour. The boat heads directly across a river perpendicular to the current which has a speed of 8 miles per hour. Find the actual speed and direction of the boat.
A. 40 miles per hour; 12° off course
B. 16 miles per hour; 30° off course
C. 20 miles per hour; 24° off course
D. 41 miles per hour; 11° off course
Answer: D
Mathematics
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A. - 
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Mathematics